如何将变量从JavaScript传递给PHP？

Question

I am using jQuery to calculate prices. Here is a small snippet of my JavaScript:

// Prices: radio
var curLam = "gloss";
$("input[name=lamination]").click(function(){
    var gloss = 5;
    var matt = 6;
    if ($(this).val() == 'gloss' && curLam != 'gloss'){
        $('#prices span').text(parseInt($('#prices span').text()) + gloss - matt);
        curLam = 'gloss';
        console.log('1');
    }
    if ($(this).val() == 'matt' && curLam != 'matt'){
        $('#prices span').text(parseInt($('#prices span').text()) - gloss + matt);
        curLam = 'matt';
        console.log('2');
    }
        $("#prices span").each(function(){
var $priceValue = $(this);
    } )

});

This checks to see if a matte or gloss finish has been selected and then it inserts the price into the span within the prices div tag.

I need to know how to assign that price value into a variable which can then be passed on to PHP for my shopping cart.

Answer 1

You could put the ID of the product into an input element and then when you submit into the shopping cart, then the value should be in your php $_POST variables.

There you can check the price and other information straight from your database.